AWS CLI Add Network Interface by Ulysses · Nov 27, 2019 Create a new interface via AWS CLI with static IP. $ aws ec2 create-network-interface \ --subnet-id subnet-xxxxxxx \ --description "second ip" \ --groups sg-xxxxxxx \ --private-ip-address 10.0.0.16$ aws ec2 create-network-interface \ --subnet-id subnet-xxxxxxx \ --description "second ip" \ --groups sg-xxxxxxx \ --private-ip-address 10.0.0.16